Environmental toxicology of hydrogen sulfide

- Hydrogen sulfide remains a significant occupational hazard.
- Major environmental sources of hydrogen sulfide (U.S.A.) are pulp, paper, chemicals and petroleum refining.
- High emission rates from oil and gas sites remain a hazard with no OSHA monitoring program.
- Details of the mechanism(s) of hydrogen sulfide toxicity are incomplete.
- There are currently no FDA-labeled antidotes or recommended treatment options for sulfide poisoning beyond supportive care.